we'll meet baltimore bill. first, let's get a preview. >> it's the best kept secret of the planet, jk rowling's novel. she's revealing more secrets. world news with diane sawyer and later on a special nightline on abc. >>> we're a few weeks into the school year but some students are handing out grades because of a few federal nutrition laws. some students say they appreciate having more opts of fruits and vegetables but others say they leave the lunch room feeling hungry. >> you want more food to keep you going, keep the energy in you. >> whether students say they like the change or not, school officials say they have just as many students who continue to buy them. >> baltimore city police make an arrest in an almost 4-year-old murder case. thatster ri and much or -- that story and much more coming up at 6:00 which starts right now. >>> look at this face. the puppy is not even weaned from his mother yet, stolen from an animal rescue. we'll tell you what volunteers are doing to get the puppy back. >> his proposa